21628236

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1307}}^1$

素因数の和:1518

約数の個数: 48

約数和(自身を含む): 58012416

約数和(自身を除く): 36384180

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 197, 394, 591, 788, 1182, 1307, 1379, 2364, 2614, 2758, 3921, 4137, 5228, 5516, 7842, 8274, 9149, 15684, 16548, 18298, 27447, 36596, 54894, 109788, 257479, 514958, 772437, 1029916, 1544874, 1802353, 3089748, 3604706, 5407059, 7209412, 10814118, 21628236]

約数ペア:

[(1, 21628236), (2, 10814118), (3, 7209412), (4, 5407059), (6, 3604706), (7, 3089748), (12, 1802353), (14, 1544874), (21, 1029916), (28, 772437), (42, 514958), (84, 257479), (197, 109788), (394, 54894), (591, 36596), (788, 27447), (1182, 18298), (1307, 16548), (1379, 15684), (2364, 9149), (2614, 8274), (2758, 7842), (3921, 5516), (4137, 5228)]